BAKTH 2.4G Wireless 8 Buttons Rechargeable Gaming Mouse / Mice with Optical Breathing LED 4 Colors, 4 DPI Adjustment Levels with Cordless USB Receiver + BAKTH Customized Large Mouse Mat Built-in rechargeable lithium battery, environmental and energy-saving. Including 80cm UBS cable for charging the mouse (at least 5 hours to reach saturation state) with two led lights showing power charging status (more details in the description). Wireless nano receiver, just plug and play. DPI: 2400/1600/1000/600. 4 breathing LED lights depend on the different DPI changing: Green - 2400DPI; Blue - 1600DPI; Red - 1000DPI; Purple - 600DPI. System Requirements: Windows XP/VISTA/7/8/10 Mac OS and other OS etc. Mode switch at back of the mouse: "off" mouse closes; "on" energy-saving mode; "LED" open to competitive game mode with breathing backlit. Package contents: 1 x BAKTH wireless rechargeable mouse; 1 x BAKTH nano receiver; 1 x usb charging cable; 1 x BAKTH customized mouse mat as gift.